Liquid container and liquid replenishment system

Abstract

A liquid container includes a liquid containing portion configured to contain liquid, an outlet portion including an outlet port configured to discharge therethrough the liquid contained in the liquid containing portion, and a protection portion configured to cover the outlet port of the outlet portion. The protection portion has a first opening portion located above the outlet port. Where a diameter of the opening portion is defined as D, and a distance between the outlet port of the outlet portion and the opening portion in a vertical direction is defined as L, inequality (1) is satisfied.

What is claimed is: 
     
         1 . A liquid container comprising:
 a liquid containing portion configured to contain liquid;   an outlet portion including an outlet port configured to discharge therethrough the liquid contained in the liquid containing portion; and   a protection portion configured to cover the outlet port of the outlet portion,   wherein the protection portion has a first opening portion located above the outlet port, and   wherein where a diameter of the opening portion is defined as D, and a distance between the outlet port of the outlet portion and the opening portion in a vertical direction is defined as L, inequality (1) is satisfied:   
       
         
           
             
               
                 
                   
                     
                       L 
                       > 
                       
                         
                           5 
                           . 
                           5 
                         
                         - 
                         
                           
                             
                               5 
                               . 
                               5 
                             
                             ⁢ 
                             
                               
                                 1 
                                 - 
                                 
                                   D 
                                   2 
                                 
                               
                             
                           
                           
                             1 
                             ⁢ 
                             6 
                             ⁢ 
                             9 
                           
                         
                       
                     
                     , 
                     
                       D 
                       < 
                       13. 
                     
                   
                 
                 
                   
                     ( 
                     1 
                     ) 
                   
                 
               
             
           
         
       
     
     
         2 . The liquid container according to  claim 1 , wherein the protection portion has a second opening portion on a side of the protection portion. 
     
     
         3 . The liquid container according to  claim 1 , wherein the L satisfies inequality (4): 
       
         
           
             
               
                 
                   
                     L 
                     > 
                     
                       
                         
                           2 
                           ⁢ 
                           
                             7 
                             . 
                             2 
                           
                         
                         D 
                       
                       . 
                     
                   
                 
                 
                   
                     ( 
                     4 
                     ) 
                   
                 
               
             
           
         
       
     
     
         4 . The liquid container according to  claim 1 , wherein L is less than 10. 
     
     
         5 . The liquid container according to  claim 1 , wherein L is less than 6. 
     
     
         6 . The liquid container according to  claim 1 , wherein the liquid is ink. 
     
     
         7 . A liquid replenishment system comprising:
 an image recording apparatus including a liquid discharge head, and a liquid tank configured to contain liquid to be supplied to the liquid discharge head, the liquid tank having an inlet portion configured to receive injection of the liquid from outside; and   a liquid container configured to supply the liquid to the liquid tank through the inlet portion of the liquid tank and comprising:   a liquid containing portion configured to contain liquid;   an outlet portion including an outlet port configured to discharge therethrough the liquid contained in the liquid containing portion; and   a protection portion configured to cover the outlet port of the outlet portion,   wherein the protection portion has a first opening portion located above the outlet port, and   wherein where a diameter of the opening portion is defined as D, and a distance between the outlet port of the outlet portion and the opening portion in a vertical direction is defined as L, inequality (1) is satisfied:   
       
         
           
             
               
                 
                   
                     
                       L 
                       > 
                       
                         
                           5 
                           . 
                           5 
                         
                         - 
                         
                           
                             
                               5 
                               . 
                               5 
                             
                             ⁢ 
                             
                               
                                 1 
                                 - 
                                 
                                   D 
                                   2 
                                 
                               
                             
                           
                           
                             1 
                             ⁢ 
                             6 
                             ⁢ 
                             9 
                           
                         
                       
                     
                     , 
                     
                       
                         D 
                         < 
                         
                           1 
                           ⁢ 
                           3 
                         
                       
                       . 
                     
                   
                 
                 
                   
                     ( 
                     1 
                     )